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CN105891240A - Double-hydraulic static-pressure supporting type rotatable rock-soil testing machine - Google Patents

Double-hydraulic static-pressure supporting type rotatable rock-soil testing machine Download PDF

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Publication number
CN105891240A
CN105891240A CN201610248365.5A CN201610248365A CN105891240A CN 105891240 A CN105891240 A CN 105891240A CN 201610248365 A CN201610248365 A CN 201610248365A CN 105891240 A CN105891240 A CN 105891240A
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China
Prior art keywords
hole
turntable
testing machine
double
rock
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Granted
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CN201610248365.5A
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CN105891240B (en
Inventor
周明连
杨俊斌
孙伟
李洁
黄越
葛勇剑
叶育茂
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Beijing Jiaotong University
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Beijing Jiaotong University
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/04Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
    • G01N23/046Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00Investigating materials by wave or particle radiation
    • G01N2223/10Different kinds of radiation or particles
    • G01N2223/101Different kinds of radiation or particles electromagnetic radiation
    • G01N2223/1016X-ray
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00Investigating materials by wave or particle radiation
    • G01N2223/60Specific applications or type of materials
    • G01N2223/616Specific applications or type of materials earth materials

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pulmonology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
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  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention provides a double-hydraulic static-pressure supporting type rotatable rock-soil testing machine. The double-hydraulic static-pressure supporting type rotatable rock-soil testing machine is characterized in that a bottom plate and vertical posts are mounted on a base, a lower platform is positioned at a specific height by the bottom plate, the vertical posts and supporting cylinders via through holes at four corners, a ladder-shaped through hole is formed in the center of an upper platform, an upper rotatable table is mounted in the ladder-shaped through hole in the center of the upper platform, a top plate is fixed at the top ends of the vertical posts, a hydraulic servo cylinder is mounted on the lower central surface of the top plate, and a piston rod of the hydraulic servo cylinder is fixedly connected with the upper surface of the upper platform. The double-hydraulic static-pressure supporting type rotatable rock-soil testing machine has the advantages that large-load specimen loading and high-precision rotation can be achieved, so that bulk specimen fracturing tests can be achieved; through high-energy CT (computed tomography) and three-dimensional imaging, rock crack generation and development during fracturing are revealed to be of great significance to rock mechanics progress.

Description

Double-hydraulic static pressure supports Rotatable rock-soil testing machine
Technical field
The present invention relates to rock-soil testing machine technical field, particularly relate to a kind of Double-hydraulic static pressure and support rotatable Rock-soil testing machine.
Background technology
Rock-soil testing machine is a kind of basic science test apparatus of the stress strain curve for research ground, Being made up of axial compression system, confined pressure system and temperature control system, operation principle is to examination by axial compression system Sample applies axial sample power, by pressure chamber, sample is applied confined pressure, is made by temperature control system simultaneously It is in different temperature environments in the middle part of the upper and lower end face of sample, sample respectively, thus simulates sample and exist Multiple actual condition under different temperatures.But traditional rock-soil testing machine is difficult to observe the inside of material Structure thus more cannot record the true geometric distribution situation of heterogeneity material inside rock mass.Along with calculating Constantly improving and development of machine technology, CT (Computed Tomography, sweep by electronic computer tomography Retouch) identification technology is applied to During Geotechnical Tests.In order in process of the test, to ground sample, each is indulged Dynamically observe to the deformation in cross section it is necessary to solve relatively rotating of ground sample and CT scanner Problem.
Lanzhou Inst. of Glaciology and Cryopedology, Chinese Academy of Sciences once used CT measuring technology to carry out the examination of ground three axle Test.They use to be placed directly in CT machine strain-type triaxial cell and are scanned, and this CT sweeps The method of retouching is suitable only for pressure chamber axial compressive force and the relatively low occasion of ambient pressure, to large-scale rock-soil testing machine Inapplicable.
Patent of invention CN 200620096213.X discloses a kind of Omnibearing scanning rock-soil CT three-shaft instrument, it It is the triaxial apparatus of a kind of complete nonmetal making, not only can carry out the scanning of horizontal section, and can indulge Scanning to (axially) section.But also it is only applicable to axial compression and the less occasion of confined pressure, to large-scale During Geotechnical Tests Machine is inapplicable.The axial compression of large-scale rock-soil testing machine, confined pressure are relatively big, and metal must be used to make test specimen tube, this Sample must use high energy CT machine accordingly.Owing to large-scale rock-soil testing machine volume is bigger, it is impossible to be directly placed into High energy CT machine scans, so the test specimen tube part of testing machine must be designed as rotatable part.
Summary of the invention
The embodiment provides a kind of Double-hydraulic static pressure and support Rotatable rock-soil testing machine, with effectively Solution ground sample in ground relatively rotates problem with CT scanner.
The invention provides following scheme:
A kind of Double-hydraulic static pressure supports Rotatable rock-soil testing machine, including: pedestal (1), base plate (2), column (3), support tube (4), upper mounting plate 13, upper turntable 14, lower platform (5), under Turntable (6), upper plate (17) and hydraulic servo cylinder (16);
Described base plate (2) and column (3) are fixedly mounted on described pedestal (1), described lower platform (5) by the through hole of corner and described base plate (2), described column (3) and described support tube (4) It is positioned at certain altitude;
The centrally disposed notch cuttype through hole of described lower platform (5), described lower turntable (6) is arranged on described In the notch cuttype through hole at lower platform (5) center, the centrally disposed notch cuttype of described upper mounting plate (22) leads to Hole, described upper turntable (14) is arranged in the notch cuttype through hole at described upper mounting plate (22) center;
Described upper plate (17) is fixed on the top of described column (3), in described upper plate (17) Heart lower surface is mounted with hydraulic servo cylinder (16), and the piston rod of described hydraulic servo cylinder (16) is with described The upper surface of upper mounting plate (22) is fixing to be connected.
Further, including: rock sample is placed on the center of triaxial pressure cylinder (11), described three axles Pressure cylinder 11 is positioned at the upper surface center of described lower turntable (6), described triaxial pressure cylinder by taper pin (11) piston-rod lower end is pressed on rock sample.
Further, the upper end of described triaxial pressure cylinder (11) is arranged to sphere, with described upper turntable (14) center ball-and-socket matches, by described upper mounting plate (22), described upper turntable (14) to institute The piston rod stating triaxial pressure cylinder (11) applies axial compressive force.
Further, upper surface and the inner surface of the notch cuttype through hole at described lower platform (5) center has one Multiple cannelures at fixed interval, four angles of described lower platform (5) are respectively arranged with the rectangle steel of a manhole Plate.
Further, multiple cannelures of the upper surface of the notch cuttype through hole at described lower platform (5) center Middle part arrange blind hole a and blind hole b, blind hole a and blind hole b intersect and communicate with hole c, hole c and hydraulic pressure Hydraulic fluid port p communicates;External slot providing holes e of multiple cannelures of inner surface, lower channel at notch cuttype through hole In blind hole d is set, hole e communicates with blind hole d, and hole e communicates with fuel tank O.
Further, described lower turntable (6) is disc-shape, in the lower surface of described lower turntable (6) The heart is provided with a short axle, upper surface center has taper locating slot, and the excircle of described lower turntable (6) passes through Screw secures gear ring (8).
Further, the periphery of described lower turntable (6) is transported with the groove internal diameter of described lower platform (5) Dynamic cooperation, and realize sealing by sealing (7) on lower turntable, the short axle of described lower turntable (6) and institute State the motion of lower platform (5) central through hole to coordinate, and realize sealing by lower turntable lower seal (19).
Further, the notch cuttype through hole lateral symmetry at the upper surface of described lower platform (5) is provided with two Individual screw, two screws has been respectively mounted motor gear and has driven assembly (10), and this motor gear drives The gear of assembly (10) is meshed with the gear ring (8) being fixed on lower turntable (6).
Further, the corner of described upper mounting plate (22) arranges through hole, and described upper mounting plate (22) is installed On four root posts (3), the through hole that the corner of described upper mounting plate (22) is arranged and described column (3) Matched in clearance;Described upper turntable (14) and described upper mounting plate (22) matched in clearance, and by upper turntable Seal (15) on lower seal (12) and upper turntable and realize rotatory sealing.
Further, described upper mounting plate (22) is centrally disposed notch cuttype through hole plane, notch cuttype through hole Inner surface be provided with the annular groove at multiple interval, the core of this annular groove passes through aperture and pressure Power hydraulic fluid port p communicates, and marginal portion groove is communicated with fuel tank O by aperture.
The technical scheme that thered is provided by embodiments of the invention described above is it can be seen that the biliquid of the embodiment of the present invention Pressure static pressure support Rotatable rock-soil testing machine can solve ground sample axially loaded during rotation Support problem.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, institute in embodiment being described below The accompanying drawing used is needed to be briefly described, it should be apparent that, the accompanying drawing in describing below is only this Some bright embodiments, for those of ordinary skill in the art, are not paying creative work Under premise, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 supports the knot of rotatable rock-soil testing machine for a kind of Double-hydraulic static pressure that the embodiment of the present invention provides Structure schematic diagram;
Fig. 2 supports the vertical view of Rotatable rock-soil testing machine for a kind of Double-hydraulic static pressure that the embodiment of the present invention provides Profile (the B-B sectional view of Fig. 1).
In figure: pedestal 1, base plate 2, column 3, support tube 4, lower platform 5, lower turntable 6, on lower turntable Sealing 7, gear 8, bolt 9, motor 10, upper turntable lower seal 12, upper mounting plate 13, upper turntable 14, Sealing 15, servoBcylinder 16, upper plate 17, servo electricity cylinder module 18, lower turntable lower seal on upper turntable 19, encoder 20, ground sample 21.
Detailed description of the invention
Embodiments of the present invention are described below in detail, and the example of described embodiment is shown in the drawings, The most same or similar label represents same or similar element or has same or like merit The element of energy.The embodiment described below with reference to accompanying drawing is exemplary, is only used for explaining this Bright, and be not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative used herein " one ", " one ", " described " and " being somebody's turn to do " may also comprise plural form.It is to be further understood that the present invention Description in the wording that uses " include " referring to existing described feature, integer, step, operation, element and / or assembly, but it is not excluded that existence or add other features one or more, integer, step, behaviour Work, element, assembly and/or their group.It should be understood that when we claim element to be " connected " or " coupled " to During another element, it can be directly connected or coupled to other elements, or can also there is cental element Part.Additionally, " connection " used herein or " coupling " can include wireless connections or couple.Used herein Wording "and/or" includes one or more any cell listing item being associated and all combinations.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technical term and scientific terminology) has and one of the those of ordinary skill in art of the present invention As understand identical meaning.Should also be understood that those terms defined in such as general dictionary should It is understood to that there is the meaning consistent with the meaning in the context of prior art, and unless as here one Sample defines, and will not explain by idealization or the most formal implication.
For ease of the understanding to the embodiment of the present invention, below in conjunction with accompanying drawing as a example by several specific embodiments It is further explained explanation, and each embodiment is not intended that the restriction to the embodiment of the present invention.
The mechanical bearing up and down of original Rotatable rock-soil testing machine is designed as using quiet by the embodiment of the present invention The bearing of pressure support concept, thus improve precision and the stationarity that Rotatable rock-soil testing machine rotates.
Below in conjunction with the accompanying drawings and embodiment is described in further detail concrete structure and the operation principle of the present invention.
The Double-hydraulic static pressure of the embodiment of the present invention supports structural representation such as Fig. 1 of rotatable rock-soil testing machine Shown in, including pedestal 1, base plate 2, column 3, support tube 4, lower platform 5, lower turntable 6, on lower turntable Sealing 7, gear ring 8, bolt 9, motor gear driving assembly 10, triaxial pressure cylinder 11, close under upper turntable Envelope 12, upper mounting plate 13, upper turntable 14, sealing 15 on upper turntable, hydraulic servo cylinder 16, upper plate 17, Servo electricity cylinder module 18, lower turntable lower seal 19, encoder 20, ground sample 21, upper mounting plate 22.
Four angles of the upper surface of said base 1 are respectively arranged with an obstructed circular hole, base plate 2 and column 3 and are fixedly mounted on On pedestal 1, support tube 4 is arranged on base plate 2.The center of lower platform 5 has notch cuttype through hole, at notch cuttype The upper surface of through hole and the inner surface of notch cuttype through hole have multiple cannelure f of certain intervals, lower platform 5 Four angles be respectively arranged with the rectangular steel plates of a manhole;Lower platform 5 passes through through hole and the base plate 2 of corner, Column 3, support tube 4 is positioned at certain altitude.
The middle part of multiple cannelure f of the upper surface of the notch cuttype through hole at lower platform 5 center arrange blind hole a and Blind hole b, blind hole a and blind hole b intersect and communicate with hole c, and hole c communicates with hydraulic pressure hydraulic fluid port p;At ladder External slot providing holes e of multiple cannelure f of the inner surface of type through hole, lower channel arrange blind hole d, hole e Communicating with blind hole d, hole e communicates with fuel tank O.
Lower turntable 6 is disc-shape, and its lower surface center is provided with a short axle, and it is fixed that upper surface center has taper Position groove, excircle secures gear ring 8 by screw.
Lower platform 5 centrally disposed notch cuttype through hole, lower turntable 6 is arranged on the notch cuttype through hole at lower platform 5 center In.The periphery of lower turntable 6 moves with the groove internal diameter of lower platform 5 and coordinates, and by sealing 7 on lower turntable Realize sealing.The short axle of lower turntable 6 coordinates with the motion of lower platform 5 central through hole, and by close under lower turntable Envelope 19 realization seals.
Triaxial pressure cylinder 11 is to be specifically used to study of rocks dress of fracture behaviour under confined pressure and Structure Under Axial Compression Putting, rock sample 21 is placed on the center of triaxial pressure cylinder 11, and triaxial pressure cylinder 11 is positioned at by taper pin The upper surface center of lower turntable 6, the piston-rod lower end of triaxial pressure cylinder 11 is pressed on rock sample 21, three axles The upper end of pressure cylinder 11 is arranged to sphere, matches with the center ball-and-socket of upper turntable 14.
Similar with coordinating of lower turntable 6 with lower platform 5, upper mounting plate 22 centrally disposed notch cuttype through hole, corner Through hole is set and is arranged on four root posts 3, through hole and column 3 matched in clearance.The center of upper mounting plate 22 sets The notch cuttype through hole plane put, through-hole inner surface are provided with the annular groove at multiple interval, annular groove Core is communicated with pressure oil port p by aperture, and marginal portion groove is communicated with fuel tank O by aperture. Upper turntable 14 is arranged in the notch cuttype through hole that upper mounting plate 22 is centrally disposed, the two matched in clearance, and passes through Seal 15 on upper turntable lower seal 12 and upper turntable and realize rotatory sealing.
Upper plate 17 is fixed on the top of four root posts 3, and its central lower surface is mounted with hydraulic servo cylinder 16, The upper surface of the piston rod of hydraulic servo cylinder 16 and upper mounting plate 22 is fixing to be connected, can pass through upper mounting plate 22, Upper turntable 14 applies axial compressive force to the piston rod of triaxial pressure cylinder 11.
Also it has been symmetrical arranged screw, in the upper surface notch cuttype through hole both sides of lower platform 5 on two screws respectively Be mounted with motor gear drive assembly 10, motor gear drive assembly 10 gear be fixed on lower turntable 6 Gear ring 8 be meshed;The phase gear (gear ring 8) of opposite side connects encoder 20, it is achieved right The detection of motion.
Fig. 2 supports the vertical view of Rotatable rock-soil testing machine for a kind of Double-hydraulic static pressure that the embodiment of the present invention provides Profile (the B-B sectional view of Fig. 1), sees Fig. 2, and the lower surface at upper turntable 14 has been evenly arranged at least Three servo electricity cylinder modules 18, the extension bar of servo electricity cylinder module 18 withstands on the piston rod of triaxial pressure cylinder 11 On external cylindrical surface, the stretching out push rod displacement control accuracy and can reach less than 1 micron of servo electricity cylinder module 18, The spread length of three servo electricity cylinder modules 18 controls to control the attitude of triaxial pressure cylinder 11.
The Double-hydraulic static pressure that the embodiment of the present invention provides supports the specific works principle of Rotatable rock-soil testing machine As follows:
After hydraulic oil high pressure hydraulic fluid port p is passed through the c hole of lower platform 5, hydraulic oil enters annular by hole b and hole a Groove f, the pressure of pressure oil forms the upwards thrust to lower turntable 6 and radial constraint in each cannelure f Power, makes two metal surfaces separate, and the gap of two metal surfaces is δ, and hydraulic oil is let out by multiple gaps Drain to edge, and return fuel tank by hole d and hole e, so realize static pressure with the pressure of hydraulic oil and suspend. Similarly, when the p hole of upper mounting plate 22 is passed through hydraulic oil, and upper turntable 14 is also suspended by the pressure of hydraulic oil.
When motor gear drives assembly 10 to rotate, driven gear 8 and the lower turntable 6 turns being connected with gear 8 Dynamic, and drive triaxial pressure cylinder 11 to rotate together.When hydraulic servo cylinder 16 starts, downward thrust is made It is used on upper mounting plate 22, and makes upper mounting plate 22 pass through three axial compressions along four column 3 slide downward, axial thrust The piston rod of power cylinder 11 passes to ground sample 21, axial thrust by between lower platform 5 and lower turntable 6 and The static pressure formed between upper mounting plate 22 and upper turntable 14 supports and undertakes.The friction supported due to hydraulic oil static pressure Power is the least, so driving its motor torque rotated the least, and the stationarity rotated carries the most accordingly High.If owing to manufacture or the existence of alignment error, make the rotary shaft of triaxial pressure cylinder 11 and lower turntable 6 Center of rotation deviates, and can realize three axial compressions by controlling the displacement of three servo electricity cylinder modules 18 The rotation attitude of power cylinder 11 and ground sample 21 thereof controls, thus improves kinematic accuracy, for CT scan and Accurately image creates condition.
In sum, the Double-hydraulic static pressure support Rotatable rock-soil testing machine of the embodiment of the present invention can solve The support problem of the rotation during ground sample is axially loaded.Sample can realize big load load, And high-precision rotary, such that it is able to realize bulk specimen crushing test, and by high energy CT scan and three Dimension imaging, discloses rock and is being occurred and development problem by the crackle in fracturing process, to promoting rock power The progress learned has great importance.
One of ordinary skill in the art will appreciate that: accompanying drawing is the schematic diagram of an embodiment, in accompanying drawing Module or flow process not necessarily implement necessary to the present invention.
One of ordinary skill in the art will appreciate that: the parts in device in embodiment can be according to enforcement Example describes in the device being distributed in embodiment, it is also possible to carries out respective change and is disposed other than the present embodiment In one or more devices.The parts of above-described embodiment can merge into parts, it is also possible to further Split into multiple subassembly.
Each embodiment in this specification all uses the mode gone forward one by one to describe, identical between each embodiment Similar part sees mutually, and what each embodiment stressed is different from other embodiments Part.For device or system embodiment, owing to it is substantially similar to embodiment of the method, So describing fairly simple, relevant part sees the part of embodiment of the method and illustrates.Above retouched The Apparatus and system embodiment stated is only schematically, the wherein said unit illustrated as separating component Can be or may not be physically separate, the parts shown as unit can be or also may be used Not to be physical location, i.e. may be located at a place, or multiple NE can also be distributed to On.Some or all of module therein can be selected according to the actual needs to realize the present embodiment scheme Purpose.Those of ordinary skill in the art, in the case of not paying creative work, are i.e. appreciated that also Implement.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not Being confined to this, any those familiar with the art, can in the technical scope that the invention discloses The change readily occurred in or replacement, all should contain within protection scope of the present invention.Therefore, the present invention Protection domain should be as the criterion with scope of the claims.

Claims (10)

1. a Double-hydraulic static pressure supports Rotatable rock-soil testing machine, it is characterised in that including: pedestal (1), base plate (2), column (3), support tube (4), upper mounting plate 13, upper turntable 14, lower flat Platform (5), lower turntable (6), upper plate (17) and hydraulic servo cylinder (16);
Described base plate (2) and column (3) are fixedly mounted on described pedestal (1), described lower platform (5) by the through hole of corner and described base plate (2), described column (3) and described support tube (4) It is positioned at certain altitude;
The centrally disposed notch cuttype through hole of described lower platform (5), described lower turntable (6) is arranged on described In the notch cuttype through hole at lower platform (5) center, the centrally disposed notch cuttype of described upper mounting plate (22) leads to Hole, described upper turntable (14) is arranged in the notch cuttype through hole at described upper mounting plate (22) center;
Described upper plate (17) is fixed on the top of described column (3), in described upper plate (17) Heart lower surface is mounted with hydraulic servo cylinder (16), and the piston rod of described hydraulic servo cylinder (16) is with described The upper surface of upper mounting plate (22) is fixing to be connected.
Double-hydraulic static pressure the most according to claim 1 supports Rotatable rock-soil testing machine, and its feature exists In, including: rock sample is placed on the center of triaxial pressure cylinder (11), and described triaxial pressure cylinder 11 leads to Cross taper pin and be positioned at the upper surface center of described lower turntable (6), the piston of described triaxial pressure cylinder (11) Bar lower end is pressed on rock sample.
Double-hydraulic static pressure the most according to claim 2 supports Rotatable rock-soil testing machine, and its feature exists In, the upper end of described triaxial pressure cylinder (11) is arranged to sphere, with the center of described upper turntable (14) Ball-and-socket matches, by described upper mounting plate (22), described upper turntable (14) to described triaxial pressure cylinder (11) piston rod applies axial compressive force.
Double-hydraulic static pressure the most according to claim 1 supports Rotatable rock-soil testing machine, and its feature exists In, it is many that the upper surface of the notch cuttype through hole at described lower platform (5) center and inner surface have certain intervals Individual cannelure, four angles of described lower platform (5) are respectively arranged with the rectangular steel plates of a manhole.
Double-hydraulic static pressure the most according to claim 4 supports Rotatable rock-soil testing machine, and its feature exists In, the middle part of multiple cannelures of the upper surface of the notch cuttype through hole at described lower platform (5) center is arranged Blind hole a and blind hole b, blind hole a and blind hole b intersect and communicate with hole c, and hole c communicates with hydraulic pressure hydraulic fluid port p; In external slot providing holes e of multiple cannelures of inner surface, lower channel of notch cuttype through hole, blind hole is set D, hole e communicate with blind hole d, and hole e communicates with fuel tank O.
Double-hydraulic static pressure the most according to claim 1 supports Rotatable rock-soil testing machine, and its feature exists In, described lower turntable (6) is disc-shape, and it is short that the lower surface center of described lower turntable (6) is provided with one Axle, upper surface center have taper locating slot, and the excircle of described lower turntable (6) is secured by screw Gear ring (8).
Double-hydraulic static pressure the most according to claim 6 supports Rotatable rock-soil testing machine, and its feature exists In, the periphery of described lower turntable (6) moves with the groove internal diameter of described lower platform (5) and coordinates, and Realize sealing by sealing (7) on lower turntable, the short axle of described lower turntable (6) and described lower platform (5) central through hole motion coordinates, and realizes sealing by lower turntable lower seal (19).
Double-hydraulic static pressure the most according to claim 7 supports Rotatable rock-soil testing machine, and its feature exists It is provided with two screws in, the notch cuttype through hole lateral symmetry at the upper surface of described lower platform (5), two Being respectively mounted motor gear on individual screw and driven assembly (10), this motor gear drives assembly (10) Gear be meshed with the gear ring (8) being fixed on lower turntable (6).
Double-hydraulic static pressure the most according to claim 1 supports Rotatable rock-soil testing machine, and its feature exists In, the corner of described upper mounting plate (22) arranges through hole, and described upper mounting plate (22) is arranged on four root posts (3) on, the through hole that the corner of described upper mounting plate (22) is arranged and described column (3) matched in clearance; Described upper turntable (14) and described upper mounting plate (22) matched in clearance, and by upper turntable lower seal (12) and seal (15) on upper turntable and realize rotatory sealing.
Double-hydraulic static pressure the most according to claim 9 supports Rotatable rock-soil testing machine, and its feature exists Set in the centrally disposed notch cuttype through hole plane of, described upper mounting plate (22), the inner surface of notch cuttype through hole Having put the annular groove at multiple interval, the core of this annular groove passes through aperture and pressure oil port p phase Logical, marginal portion groove is communicated with fuel tank O by aperture.
CN201610248365.5A 2016-04-20 2016-04-20 Double-hydraulic static pressure supports Rotatable rock-soil testing machine Expired - Fee Related CN105891240B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106546490A (en) * 2016-10-25 2017-03-29 北京交通大学 Rotatable rock mechanics experiment machine with internal heat
CN106769518A (en) * 2017-02-23 2017-05-31 湖北工业大学 Uniaxial tests device with ultrasonic scanning function
CN108240942A (en) * 2016-12-26 2018-07-03 中国科学院地质与地球物理研究所 A kind of rock fracture experimental system and experimental method
CN109030325A (en) * 2018-06-12 2018-12-18 中国地质大学(武汉) A kind of all-in-one machine suitable for mud stone wetting-drying test and triaxial test
CN109580365A (en) * 2018-10-19 2019-04-05 中国科学院地质与地球物理研究所 High energy acclerator CT rock mechanics testing system

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